<template>
  <view v-if="goods_info.goods_name" class="goods-detail-container">
    <!-- 轮播图区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item,i) in goods_info.pics" :key="i">
        <image :src="item.pics_big" @click="preview(i)"></image>
      </swiper-item>
    </swiper>
    <!-- 商品信息区域 -->
    <view class="goods-info-box">
      <!-- 商品的价格 -->
      <view class="price">￥{{goods_info.goods_price}}</view>
      <!-- 商品的信息主体区域 -->
      <view class="goods-info-boby">
        <!-- 商品的名字 -->
        <view class="goods-name">{{goods_info.goods_name}}</view>
        <!-- 收藏 -->
        <view class="favi">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <!-- 运费 -->
      <view class="yf">快递:免运费</view>
    </view>
    <!-- 商品详细信息 -->
    <rich-text :nodes="goods_info.goods_introduce"></rich-text>
    <!-- 商品导航组件 -->
    <view class="goods-nav">
      <uni-goods-nav :fill="true"  :options="options" :buttonGroup="buttonGroup"  @click="onClick" @buttonClick="buttonClick" /> 
    </view>

  </view>
</template>

<script>
  import { mapState, mapMutations, mapGetters } from 'vuex'
  
  export default {
    computed:{
      ...mapState('m_cart',[]),
      ...mapGetters('m_cart',['total'])
    },
    watch: {
      // total(newVal){
      // const findResult = this.options.find(x => x.text === '购物车')
      // if(findResult){
      //   findResult.info = newVal
      // }
      // }
      total:{
        handler(newVal){
        const findResult = this.options.find(x => x.text === '购物车')
        if(findResult){
          findResult.info = newVal
        }
      },
      immediate: true
      }
      
    },
    data() {
      return {
        goods_info:{},
        options: [ {
        					icon: 'shop',
        					text: '店铺',
        					infoBackgroundColor: '#007aff',
        					infoColor: "#f5f5f5"
        				}, {
        					icon: 'cart',
        					text: '购物车',
        					info: 0
        				}],
        				buttonGroup: [{
        						text: '加入购物车',
        						backgroundColor: 'linear-gradient(90deg, #FFCD1E, #FF8A18)',
        						color: '#fff'
        					},
        					{
        						text: '立即购买',
        						backgroundColor: 'linear-gradient(90deg, #FE6035, #EF1224)',
        						color: '#fff'
        					}
        				]
        
        
      };
    },
    methods:{
      ...mapMutations('m_cart',['addToCart']),
      async getGoodsDetail(goods_id){
        const {data: res} = await uni.$http.get('/api/public/v1/goods/detail',{goods_id})
        if(res.meta.status !== 200) return uni.$showMsg()

        res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g, '<img style="display:block;" ').replace(/webp/g, 'jpg')
        
        this.goods_info = res.message
      },
      preview(i) {
        uni.previewImage({
          current: i,
          urls: this.goods_info.pics.map(x => x.pics_big)
        })
      },
      onClick(e){
        if(e.content.text === '购物车'){
          uni.switchTab({
            url:'/pages/cart/cart'
          })
        }
      },
      buttonClick(e){
        if(e.content.text === '加入购物车'){
          //组织商品的信息对象
          // { goods_id, goods_name, goods_price, goods_count, goods_small_logo, goods_state }
          const goods ={
            goods_id: this.goods_info.goods_id,
            goods_name: this.goods_info.goods_name,
            goods_price: this.goods_info.goods_price,
            goods_count: 1,
            goods_small_logo: this.goods_info.goods_small_logo,
            goods_state: true
          }
          //调用addToCart方法
          this.addToCart(goods)
        }
      }
      
      
      
    },
    onLoad(options) {
      const goods_id = options.goods_id
      this.getGoodsDetail(goods_id)
    }
    
    
    
  }
</script>

<style lang="scss">
swiper{
  height: 750rpx;
  image{
    width: 100%;
    height: 100%;
  }
}
.goods-info-box{
  padding: 10px;
  padding-right: 0;
  .price{
    color: #c00000;
    font-size: 18px;
    margin: 10px 0;
  }
  .goods-info-boby{
    display: flex;
    justify-content: space-between;
    
    .goods-name{
      font-size: 13px;
      margin-right: 10px;
    }
    .favi{
      width: 120px;
      font-size: 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      border-left: 1px solid #efefef;
      color: gray;
    }
    
  }
  .yf{
    font-size: 12px;
    color: gray;
    margin: 10px 0;
  }
  
}
.goods-nav{
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
}
.goods-detail-container{
  padding-bottom: 50px;
}

</style>
